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    Question

    Die back in citrus is caused due to the deficiency of

    ____
    A Iron Correct Answer Incorrect Answer
    B Boron Correct Answer Incorrect Answer
    C Magnesium Correct Answer Incorrect Answer
    D Zinc Correct Answer Incorrect Answer
    E Copper Correct Answer Incorrect Answer

    Solution

    Deficiency of Cu causes physiological disorders like Die back of citrus, reclamation disease of sugarcane, stem melanosis of wheat etc.

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